What Happens if Your Vitamin D is at 14?
                                
                                
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                                    4 min read                                
                            
                                According to the National Institutes of Health, a vitamin D level below 20 ng/mL is classified as deficient, placing a level of 14 ng/mL firmly within the severe deficiency range. This critically low level can lead to significant health issues affecting bone density, immune function, and overall well-being.